So I had a little holiday romance with this Korean girl when I was there 6 months ago and apart from 1 email between us didnt keep any contact. But actually Ive been thinking about her recently and if possible would love to invite her over to visit me sometime and see what happens. What would be the best way to do this?

So far I already added her onto facebook and sent a message saying I just spotted her name on a mutual friends profile and asked her how she was. Im pretty sure she will reply to that. then what? I tried inviting people from other countries to visit me before but I think they dont take me serious, or maybe for another reason dont end up coming... Anyway, suggestions please!

Use your natural game. charm her a bit online. number close. phone calls and then when you are close again invite her over. use call backs like remembering about all the funny things you did together etc.